Attachment for printing presses



July 3, I928. 1,675,582

1. l. STONE ATTACHMENT FOR PRINTING PRBSSES Filed April 11, 1927 2 Sheets-Sheet 1 wwwfeu/ a' STO/Vi I. I.. STONE ATTACHMENT FOR PRINTING PRESSES July 3, 1928.

Filed April 11, 1 927 2 Sheets-Sheet 2 fQU/A/G Z. jTo vg amz . fl "ZZZ WM Q Patented July 3, 1928.

UNITED STATES IRVING I. STONE, OF CHICAGO, ILLINOIS.

ATTACHMENT I OR PRINTING PRESSES.

Application filed April 11, 1827. Serial No. 182,729.

This. invention relates to an attachment for printing presses and has special reference to a severing means associated with the means of supply for printing presses.

More particularly, this invention relates to an automatic cutter for use in connection with the web roll suppl for printing presses whereby when one we roll is nearly exhausted, the web from that roll is severed just subsequent to the attachment thereto of a new web from a fresh roll.

It is usual in supply devices for printing presses employed in newspaper plants and the like to provide a reel having a plurality of web rolls mounted thereon whereby the a printing presses maybe continuous in action, the reel being .rotatable in order that a new web .roll may be brought into position to take the place of an exhausted web roll without stopping the operation of the printing press. When the expiring web roll is nearly exhausted the fresh 'web roll is brought into position such that the end of the web thereof ma be attached to the web of the expiring roli without materiall decreasing the Web speed whereafter the atter web is cut or torn. Printing presses of repent date are designed to run at a continuous and unchangeable speed whereby no interruption in the speed of the web is necessary,

and therefore, no time has been lost in the I to sever the expiring web.

One of the objects of this invention is to provide a cutter for a web roll printing press which is simple in operation, inexpensive to manufacture and durable.

A further object of this invention is to provide. an automatic cutter for use in connection with web roll printing presses.

Further objects and advantages will be apparent from the description and the accompanying drawings forming a part of this specification to which reference may now be had for a more complete understanding of the characteristic features of this invention in which drawings:

Figure 1 is a side elevational view of a web roll printing press showing the device of the resent invention in an operative position t erewith- F ig. 2 is a side elevational view of the dev ce embodied in this invention showing various positions thereof-in dotted lines;

F g. 3 1s a front elevational view of Fig. 2;

51g. 4 is a rear elevational view of Fig. 2;

an Fig. 5 is a front elevational view partially in section showing a changed position of Fig. 1' and being taken on the line 5-5 thereof.

Referring now to the drawings and more particularly to Fig. 1 thereof, the supply means for the printing press comprises a pair of supports 10 having a shaft 11 supported thereon and journalled therein. A reel 12 is rotatably mounted on the shaft 11 and is either provided with means for rotating the same continually or at the will of the attendant. These means for rotating the reel are not shown and it is believed need not be shown as they are very well known in the art.

A plurality of web rolls 13 are mounted on the reel 12, the particular embodiment shown containin three such web rolls, the reel be-. ing provi ed with three spider arms having suitable bearings 14 for receiving mechanism for supporting each of said rolls. The bearings 14 are each provided with a spindle 15 which extends horizontally therethrough and is reciprocably mounted therein. Each of the spindles 15 contain a rack 16 on one side thereofwhich is suitably-cut or formed to mesh with a pinion 17, which latter is fixedly mounted on a shaft extending horizontally through the bearing 14, said pinion being disposed in a recessformed in said bearing. The shaft 18 is operated by means of a suitable handle 19 which is mounted on an extension thereof. One end of the spindle 15 is provided with an aperture for receiving a shank portion 20 of a centering device having a conical centering head 21.

In the particular construction shown, the web of the web rolls 13 arewoundon spools 13 which are preferably made of aper. For the purpose of supporting the we rolls 13 a pair ofchucks 2are provided for enagement with the conical centering devices.

hese chucks comprise a solid cylindrical shank, which is ofa diameter to snugly engage the inner diameter of the spool '13 on which the'web is wound and is about 8 inches long for an ordinary sized web roll. Of

course thisdimension is merely for purposes of illustration and the shank portion may. be extended or shortened at thewlll of the user. The chuck is also provided with a flange for engagingthe edge ofthe web roll to limit the extent to which the chuck will enter the spool, and a conical shaped central depression for engaging the conical centering head 20 or 23.

When it is desired to mount one of the web rolls in position in the printing press, the handle 19 is rotated in a direction to draw the centering head rearwardly and to permit of a sufficient clearance for the web roll to be inserted between the centering heads 20 and 23. One end of the web roll is lifted and located so thatthe conical center 23 enters the conical depression in the chuck 24. The other end of the web roll is then raised into a substantially horizontal position and the handle 19 is then turned in an opposite direction so as to extend the centering head 21 into engagement with the conica amount of tension may be placed on these centering heads to either retard the movement of the web roll or to permit of a free I action thereof.

Referring now to Fig. 5 of the drawings, the full line showing represents a condition wherein one of the web rolls nearly exhausted and the web therefrom passes over a guide roller 25. The dotted line position of this figure shows the web of the new roll about to become attached to the expiring web, the web roll which is nearly exhausted entering a jaw shaped member of a cutting device preparatory to severing the expiring web. The new web roll has its edges provided with a paste in order that it may become attached to the expiring web just prior to the latter web being severed.

The cutter of this invention comprises a [rtions o the conical centering eads aperture in the chuck 24. Any desired jaw shaped member 26 which may be cast or formed from a sin le sheet of metal or other suitable material, the member having preferably a substantial width and being rovided with an inner rubber surface 27. he rubber surface may be roughened or corrugated to provide a good grip ing vmedimaterial and the lower edge thereofis bent at right angles thereto on tl' eopposite side to um, and on the upper and outer e g'e thereof that in which the jaw shaped member is normally disposed. stiffening block 31 of comarativel heavy weight is'positioned at the ower en of the supporting member 30 for normally holding the cutter in an upright position and-also acts as a stiffening means for holding the lower edge in its position at right angles to the member 30. It will be apparent that the weighted member may be omitted by shifting the center of gravity as by means of reclinin tending member 30 .to a iased position.

On the opposite side of the vertical member 30 and secured to the lower edge thereof is a hinge member 32, one leaf of which is the vertically exbolted or otherwise suitably secured to the flooror other support thus providing a pivot upon which this cutter may be pivotally mounted. In order to hold the jaw shaped portion in a substantially horizontal position, a horizontally extending arm 33 is seloo cured to one edge of the member 26, the

other end extending back to engage the resilient member 30.

In the operation of this device when the reel 12 rotates into a position such that the newweb roll is about to replace the expiring web roll, the latter will engage the jam shaped member 26 substantially as shown in Fig. 2 of the drawings, whereby the teeth 28 will perforate the web at one edge thereof and the inner rubber surface of the jaw member will act as a brake to prevent the web roll from rotating, whereafter the web will tear across the entire lateral surface thereof.

As the reel continues its movement, the expiring web roll urges the cutter into a position such as is indicated in the dotted line position B, wherein the jaw member 26 will pivot on the spring member 30 and the latter member will be flexed to accommodate the new position. Upon continuing the movement, the jaw shaped member 26 will )crmit the exhausted roll to pass the line defined by the center of the web roll 13, the pivot of the bracket 29 and the pivot of the hinge 32 whereafter the flexed upright member 30 action as hereinbefore described will be per- ,this purpose, the

will then spring back past the upright posi-' tion and occupy a position onthe floor such as is indicate in dotted lines at C.

When the new-web roll has become partially exhausted, the cutter is manually laced back into a position such as is shown in full lines in Fig. 2, whereby the same mitted. During practically the entire time that the presses are in operation, it is desirable to have the cutter occupy the dotted line position C in order that the reel 12 may be, adjusted in any manner that may seem necessary to the attendant Without any interference from the cutter.

Inasmuch as a varied amount of paperis left on the expired web roll, the diameter of the latter varies and the jaw member 26 must accommodate these variations. For 'aw member is preferably semi-ellipticall sl iaped whereby a web roll of a smaller diameter will extend a further distance into the jaw than a web roll of a larger diameter to receive the braking action thereof. 7

While but a single embodiment of this invention is herein shown and described, it is to be understood that the same is not to be limited to that specific construction since various modifications may .occur to those skilled in the art without departing from the spirit and scope of this invention, and I desire therefore that the structure be limited only by the showing of the prior art" for supporting the running roll and the fresh roll of a web roll supply apparatus, of automatic means mounted independently of said apparatus disposed in the path of said running roll as said reel is rotated for severing the web from said running roll when it is desired to feed the new web from said fresh roll.

3. The combination with a rotatable reel for supporting the running roll and the fresh roll of a web roll supply apparatus, of resiliently mounted means disposed in the path of said running roll as said reel is rotated for severing the web from said running roll when it-is desired to feed the new web from said fresh roll.

4. The combination with a rotatable reel for supporting the running roll and the fresh roll of a web roll supply apparatus, of a pivotally mounted cutter disposed in the path of said running roll as said reel is rotated for severing the web from end running roll when it is desired to feed the new web from said fresh roll.

- 5. The combination with a rotatable reel for supporting the running roll and the fresh roll of a web roll supply apparatus, of a pivotally mounted cutter disposed in the path of said running roll as said reel is rotated for severing the web from said running roll when it is desired to feed the new web from said fresh roll, said cutter having a resilient support whereby it is pivoted out of an operative position after an initial use.

6. A cutter for a web roll supply apparatus including a rotatable reelfor supporting a running roll and a fresh roll comprising a member of a substantial width having cutting means thereon for automatically severing the web from said running roll when it is desired to feed the new web from said fresh roll, said member being dis osed in the path of said running roll as sai reel is rotated.

7. A cutter for a web roll supply apparatus including a rotatable reel for supporting a running roll and a fresh roll comprising a pivotally mounted member disposed in the path of said running roll as said reel is rotated and having gripp ng means thereon for engagement with said running roll, and cutting means on said member for automatically severing the web from said running roll when it is desired to feed the new web from said fresh roll.

8. A cutter for aweb roll supply apparatus including a rotatable reel for supporting a running roll and a fresh roll compris- 'ing a resiliently supported member disposed in the path of said running roll as said reel is rotated and having gripping means thereon for engagement with said running roll, and cutting means on said member for automatically severing the web from said running roll when it is desired to feed the new web from said fresh roll.

9. A cutter for a web roll supply apparatus including a rotatable reel for supporting a running roll and a fresh roll comprising a gripping member of arcuate shape disposed 1n the path of said running roll as said reel is rotated, the concave face of said member having a roughened surface for engaging said running roll, and cutting means on said member for automatically severing the web from said runnin roll when it is delslired to feed the new wefi from said fresh ro 10. A cutter for a web roll supply apparatus including a rotatable reel for supporting a running roll and a fresh roll comprising a semi-elliptically shaped member disposed in the path of said running roll as said reel is rotated, the concave face of said member gripping said running roll whereby said gripping action may be obtained on severing the webfrom said .running roll.

when it is desired to feed the new web from said fresh roll. 1

11. A cutter fora web r011 supply apparatus including a rotatable reel for supporting a running roll and afresh roll comprising an arcuate. shaped member disposed in the path of said running roll as said reel is rothted, the concave surface of said member engaging said running roll, a pivotally mounted supporting member, said arcuate shaped member being pivotally mounted on the free end of said supporting member, and cutting means on said arcuate shaped member for severingthe web on said. running roll when it is desired to feed the new web from said fresh roll.

12. A cutter for a web roll supply apl paratus including a rotatable reel for supporting a running roll/and a fresh roll comprising an arcuate shaped member disposed in the path of said running roll as said reel is rotated, the concave surface of said member engaging said running roll, a resilient supporting member, and cutting means on said arcuate shaped member for severing the web on said running roll when it is desired to feed the new Web from said fresh roll, said arcuate shaped vmember being )ivotally mounted on said supporting memer for permitting said reel to continue its rotation.

13. A cutter for aweb roll supply apparatus including a rotatable reel for supporting a running roll and a fresh roll comprising an arcuate shaped member disposed in the path of said running roll assaid reel is rotated, the concavesurface of said member engaging said running roll, a pivotally mounted resilientsupporting member, and cutting means on said arcuate shaped member for severing the web on said running roll when it is desired to feed the new web from said fresh roll, said arcuate shaped mounted spring support,.means for nor-. mally holding said support in an operative position,- and cutting means on said grip ping member for sev eri'n the web. on said running roll'when it is esired to feed the new web from the fresh roll, said gripping member being pivotally mounted on said spring support whereby ,said reel is per-j mittcd to continuejits vrotation after the cutting action whereafter said, cutter willv assume an inoperative position.

15. A cutter for a web roll supply ap-- paratus including a rotatable reel forsup porting a running roll and afresh roll comprising-a gripping memberdisposed in the path of said runn ng roll assaid reel is rotated, the concave surface of said member engaging said running roll, a pivotally mounted spring support,sa1d spring support having a weighted extension thereonfor normally holding the same in a vertical operative position, and cutting means on said gripping member for severing the web on said running roll when it is desired to feed the new web from the'fresh roll, said gripping member being pivotally mounted on said spring support whereby said reel is permitted to continue its rotation after said cutting action whereafter said cutter will spring to an inoperative position.

In witness whereof, I have hereunto subscribed my name.

IRVING I. STONE. 

